"She wasn't allowed out on breaks, she had to be escorted to the dining room and was segregated from her friends," Terri's mother Anne-Marie told the North Wales Pioneer.

Terri has since been allowed back to school but her mother is still seeing red.

Headteacher David Lewis said the school "worked hard" to resolve issues with parents and uniform expectations are clearly set out in students' diaries.

The Year 10 student, who has her sights set on being an RAF pilot, must be sky-high after Rihanna tweeted her support, telling her "The color of your hair doesn't change who u are, you are an A-grade student #1love".